21.4 is what percent of 143.6 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 143.6 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 143.6, so we can write it down as 100%=143.6.
4. We know, that x% equals 21.4 of the output value, so we can write it down as x%=21.4.
5. Now we have two simple equations:
1) 100%=143.6
2) x%=21.4
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=143.6/21.4
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 21.4 is what percent of 143.6

100%/x%=143.6/21.4
(100/x)*x=(143.6/21.4)*x       - we multiply both sides of the equation by x
100=6.7102803738318*x       - we divide both sides of the equation by (6.7102803738318) to get x
100/6.7102803738318=x
14.902506963788=x
x=14.902506963788

now we have:
21.4 is 14.902506963788% of 143.6